How do Kirk Hammett and Joe Perry come ahead of Neil Young?

Rolling Stone's 100 greatest guitarists
for those too lazy to use the link here's the top 20 plus one:
1. Jimi Hendrix (naturally....)
2 Duane Allman of the Allman Brothers Band
3 B.B. King
4 Eric Clapton
5 Robert Johnson
6 Chuck Berry
7 Stevie Ray Vaughan
8 Ry Cooder
9 Jimmy Page of Led Zeppelin
10 Keith Richards of the Rolling Stones
11Kirk Hammett of Metallica
12 Kurt Cobain of Nirvana
13 Jerry Garcia of the Grateful Dead
14 Jeff Beck
15 Carlos Santana
16 Johnny Ramone of the Ramones
17 Jack White of the White Stripes
18 John Frusciante of the Red Hot Chili Peppers
19 Richard Thompson
20 James Burton
21 George Harrison

Clearly there are some problems with the list that are the result of it being a Rolling Stone list - a lot of emphasis on guys who are very new and hip (Jack White is #17 and Buddy Guy is #30? Don't make me laugh) or are known more for the notoriety or influential nature of their group than thier actual chops/solos/skill (Johnny Ramone? Kurt Cobain?) though it is nice to see the real king of Rock and Roll at number 6.